RADIOFREQUENCY INDUCED EFFECTS IN AMORPHOUS AND NANOCRYSTALLINE FE73.5CU1NB3SI13.5B9

被引：14
作者：
KOPCEWICZ, M [1 ]
JAGIELSKI, J [1 ]
GRAF, T [1 ]
FRICKE, M [1 ]
HESSE, J [1 ]
机构：
[1] TECH UNIV CAROLO WILHELMINA BRAUNSCHWEIG,INST MET PHYS & NUKL FESTKORPERPHYS,W-3300 BRAUNSCHWEIG,GERMANY
来源：
HYPERFINE INTERACTIONS | 1994年 / 94卷 / 1-4期
关键词：
D O I：
10.1007/BF02063766
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The rf collapse and sideband effects are used to study the microstructure of the Fe73.5Cu1Nb3Si13.5B9 alloy in the amorphous and nanocrystalline state. Nanocrystalline grains of alpha-Fe(Si) are formed as a result of annealing of the amorphous alloy at 520-570 degrees C. The results show that the complete rf collapse of magnetic hfs in the Mossbauer spectra occurs only in the amorphous phase. The rf collapse is strongly affected by the onset of the nanocrystalline phase and is suppressed when the Fe3B and Fe2B phases are formed. Partial collapse allows us to follow the remaining crystalline fractions during the crystalline process. The rf sidebands disappear due to the formation of nanocrystals because of the vanishing magnetostriction.
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收藏
页码：2223 / 2227
页数：5
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